Gentlemen, Unfortunately necessity breeds investigation. The Fanuc 11M on my Enshu is dying. In concert with Fanuc we can find no cause. It is now at the point of beginning a random board replacement until the culprit is eliminated. This could be expensive. The other option is EMC2!!!!!! - that is an option I like. After review of a previous discussion on the necessary tach signal for the amp I have questions bouncing around in my head.
If the 11 control is SOOOO SLOOOWWWW in program execution would that control not process the tach signal at a relative slow speed compared to today's capability? If that generated tach signal was sufficient for the amps in the late 70's would the current technology be able to at least match it? If today's tach signal generation is suboptimal for a servo amp how did Fanuc do it acceptably 30 years ago? If synthesized tach signals are problematic why does/did Fanuc use them as their primary design? Fanuc seems to have a "decent" reputation for servo systems and controls. :) I insist on believing there is no magic nor magic chip in a Fanuc control. just asking thanks Stuart -- dos centavos ------------------------------------------------------------------------------ This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
